Assume that the correlation between temperature and ice cream sold is r = 0.5. What is the percentage of variance in ice cream sold is accounted for by temperature?

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

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How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?